Motor



(No Model!) G. B. WIGGINS.

MOTOR.

UNITED STATES PATENT OFFICE.

GEORGE B. WIGGIN S, OF SAGINAW, MICHIGAN.

MOTOR.

J SPECIFICATION forming part of Letters Patent No. 546,723, datedSeptember 24, 1895. Application filed June 14, 1895. Serial No. 552,781-(No model.)

To aZZ whom it may concern:

Be it known that I, GEORGE B. Wreenvs, a citizen of the United States,residing at Saginaw, in the county of Saginaw and State of Michigan,have invented certain new and useful Improvements in Motors; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being bad to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

My invention is a motor for hand use, its object being to produce amachine by means of which greater power can be had with the samemuscular force than has heretofore been possible. The arrangement ofleverage is such that I am able to utilize theoperators weight, ifnecessary, as well as his strength, which adaptability makes the machinedesirable for a multitude of purposes. It can be applied to all kinds ofmachines having a rotary motion or a reciprocating action. Therefore Ido not limit myself to the particular form and construction of machineshown and described, for such changes may be made as ordinary mechanicalskill would suggest in applying the motor principle to particularmachines. In motors heretofore used it has been customary to use a crankor lever having a fixed fulcrum. It will be seen in my machine that thefulcrum-point is constantly changing over a given surface, and thereforethe leverage is also changing, and that as the leverage is shortened onone side it lengthens on the other, so that as one side reaches itsminimum leverage the otherlever is ready to take up its work at itsmaximum leverage, thus preventing any lost motion and consequent power.

Figure 1 is aside elevation of the motor as applied to a simple gearing.Fig. 2 is a side elevation showing the levers in different positions.

A is the framework supporting the motor and gearing and may be' of anystyle and form.

The motor consists, primarily, in the use of two or more rockers B and0, segments of the same sized circle, and may be of any suitablematerial, wood being sufficient for ordinary use. These rockers areplaced, as shown, with their rounded surfaces opposite and abutting andin the same plane, in which position they are held by a spiral spring Lon each side thereof, one end of each spring being secured to the upperrocker and one end to the lower. These springs L should not be toostrong, so as to prevent the free rocking of the rockers one upon theother, as desired. This feature of the machine is illustrated in thecommon chair-rocker known as the patent rocker, except that in saidrocker the under surface is straight and horizontal. These springs servethe double purpose of keeping the rockers together and drawing them totheir normal or rest position, thus assisting the lever upon theopposite side, as will be hereinafter seen.

To the top surface of the upper rocker I secure the long bar J,extending equal distance oneach side, although one side is sufficient itoperated by one person. It is obvious that pulling down or pushing up onthis rod J will rock the rockers O, the base-rocker B being secured tothe top of the frame A, which gives to the rocker 0 all the more action.

Pivoted to one side of the rocker O and near the end thereof is thepitman E, connected at its other end to the wrist-pin F of thegear-wheel G, meshing into the pinion H on shaft H, which carries thefiy-wheel I. It is obvious that this pitman and gearing may be connectedto any machinery desired in any way desired-such as pulleys and belts,or sprocket-wheels and chains. If it is desired to have a reciprocatingmotion, I place another crank on the shaft, to which the connection canbe made. Speed can be obtained by multiplying the gearing in the usualway.

In the drawings I have shown a platform K, upon which the operators maystand, which platform, being connected and supported by the bar J, givesthe operator the benefit of his own weight in operating the rockers fora part of the distance, the leverage being more than sufficient toovercome the weight of the opposite operator, and vice versa. For,

as previously stated, the fulcrum is constantly changing as the rocker Ois operated, and when it is the shortest on one side it is the longeston the other, and by lifting as his end goes up and pulling as it goesdown the operators work together and get the benefit of the change offulcrum. By duplicating the rockers means may be provided for workinglarger force, and consequentlygreater power obtained. It is obvious thatplatforms and seats for the operator may be arranged in various ways soas to give the operator the benefit of his weight, after the machineryis in motion, to keep up the motion. It will be apparent that the rockerB may rest upon the floor with the rocker 0 above it, with the pitman Eextending upward and connected to the machinery, in which position itwould be necessary to elevate the bar J and platform. For heavier workit may be necessary to have the curved surfaces of the rockers B and Ocorrugated transversely in order to prevent their slipping one upon theother. This I claim the right to do. It would be possible to make apower, and, perhaps, it has been done, with a rocker on a straightsurface, as a floor; but by the use of a curved base-rocker, asdescribed, I am enabled to get greater leverage and consequently moreeffective power.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a motor, a lever having a rolling fulcrum movably secured to androlling over a curved base, and thereby giving a rocking motion to thelever, and means for converting the rocking motion to a rotary motion,substantially as and for the purpose set forth.

2. In a hand motor a rocker having secured to each end thereof a barextending laterally, the rocker being movably secured to and rockingupon a convex base, and means secured to the rocker for converting thereciprocating motion of the rocker to a rotary motion comprising apitman and disk, substantially as and for the purpose set forth.

3. In a motor, one or more parallel rockers having laterally extendingarms supporting platforms, a convex base under the rockers and formingthe base for the rockers, a coiled spring connecting the rockers to thebase at the middle of their curved surfaces, whereby the rockers may beheld on the base as they rock, a pitman, disk and shaft for conveyingand converting the reciprocating motion of the rockers to a rotarymotion of machinery, substantially as and for the purpose set forth. Intestimony whereof I aflix my signature in presence of two witnesses.

GEORGE B. IVIGGINS. \Vituesses:

A. II. SWARTI-IOUT, J. F. OKnnnn.

